The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 16, 2018
Filed:
Dec. 15, 2014
Applicant:
Sanyo Denki Co., Ltd., Tokyo, JP;
Inventors:
Katsumichi Ishihara, Tokyo, JP;
Akira Nakayama, Tokyo, JP;
Tatsuya Midorikawa, Tokyo, JP;
Masato Kakeyama, Tokyo, JP;
Assignee:
SANYO DENKI CO., LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04D 25/06 (2006.01); F04D 19/00 (2006.01); H02K 5/12 (2006.01); H02K 5/16 (2006.01); H02K 15/10 (2006.01); H02K 5/10 (2006.01); H02K 5/08 (2006.01); F04D 29/02 (2006.01);
U.S. Cl.
CPC ...
F04D 25/0686 (2013.01); F04D 19/002 (2013.01); F04D 25/0613 (2013.01); F04D 25/0646 (2013.01); F04D 29/023 (2013.01); H02K 5/08 (2013.01); H02K 5/10 (2013.01); H02K 5/12 (2013.01); H02K 5/16 (2013.01); H02K 15/10 (2013.01); H02K 2205/09 (2013.01);
Abstract
A waterproof axial flow fan includes: a rotor having a rotating shaft pivotally supported by a bearing in a rotatable manner, an impeller provided to a tip of the rotating shaft and a rotor cover; a stator having a winding and a circuit board, a surface of which is coated with an electrically insulating synthetic resin; and at least one ring collection groove part formed in a resin surface opposing to the rotor cover at an apex of the stator so as to surround a tip of a bearing holding part for holding the bearing.